By mildred l



F. S. LOWRY, DECD- 11.1.111111. r'omnznw m.1ownv. ADMINISTRATRIX- MOLD FOR CERAMIC PRODUCTS.

APPLICATION FILED mm. I. 1919 Patented Sept. 2, 1919.

UNITED STATES PATENT OFFICE.

FREDERICK S. LOWRY, DECEASED, LATE 0F ROSEVILLE, OHIO, BY MILDRED L. HART, FORMERLY MILDRED LOWRY, ADMINISTRATRIX, 0F ROSEVILLE, OHIO.

MOLD FOR CERAMIC PRODUCTS.

Application filed March 1, 1919.

To all whom it may concern:

Be it known that I, MILDRED L. HART, a citizen of the United States, .residing at Roseville, in the county of Perry and State of Ohio, am the administratrix of the last will and testament of FREDERICK S. LOWRY, deceased, formerly of Roseville, Perry county, Ohio, who has invented new and useful Improvements in Molds for Ceramic Products, of which the following is a specification.

This invention relates broadly to molds, and has particular reference to animproved mold applicable for use in effecting the formation of clay products, particularly cooking utensils.

The object of the invention is to provide a mold of this character with improved means for effecting the forming of ofiset handle receiving projections upon such utensils or receptacles, and is of such construction as to permit the projections to be formed at positions below the rims of the utensils, the mold also carrying novel means which assistin the formation of the projections, and whichpermit the latter to be readily removed from the mold in a finished condition and without the liability of damage or breakage thereto.

With these and other objects in view, as will appear as the description proceeds, the invention accordingly consists in the novel features of construction, combinations of elements and arrangement of parts, hereinafter more fully described and having the scope thereof defined in the appended claims.

In the accompanying drawing, forming a part of this specification, and in which similar characters of reference denote like and corresponding parts: I

Figure 1 is a top plan view of the mold comprising the present invention.

Fig. 2 is a vertical sectional viewthereof taken along the line 2-2 of Fig. 1.

Fig. 3 is a fragmentary perspective view of the mold disclosing more particularly the construction of the ear formingpocket and its cooperative plate receiving recess.

Fig. 4 is a detailed perspective view of the pocket inclosing plate.

Fig. 5 is a detail handle to be inserted in the ears of the receptacle;

Referring more particularly to a the details of the invention, use is made of a mold Specification of Letters Patent.

Patented Sept. 2, 1919.

Serial No. 280,086.

1, which is preferably of bowl shape configuration and is formed from plaster or other similar material. It will of course be understood that the materials forming a ceramic receptacle are placed into the hollow mterior 2 of the mold, and are then pressed against the sides thereof to effect their final shapes, and the mold is preferably placed upon a revolving table to facilitate this operation.

Heretofore, considerable difficulty has been occasioned in forming the offset handle receiving projection or cars 3 upon the sides of the receptacles 4,-and to cause such projections to be positioned below the rim of the receptacle. To accomplish this, it has been the common practice to provide the rims of the'molds with car forming pockets, which were in open communication with the upper surface of the mold rim, in order that after a receptacle had been formed no-difficulty would be encountered in effecting its removal from a mold. It is obvious that this construction left the upper portions of the projections 3 flush with the rims-oftheir receptacles, so that in order to lower or reduce the height of the projections it has been necessary to cutaway the upper part of said projections, so that the latter would occupy a plane beneath that of the receptacle rim. Through the provision of the present invention, a structure has been provided whereby this cutting away of the projections 3 is eliminated, facility in effecting the re moval of the completed receptacle from the mold is afforded, and a pleasing and attrac-' tive appearance imparted to the receptacle at points adjacent to the ear formation. This latter feature is not to he found in receptacles which have the projections 3 re;

duced in size by cutting operation, as the latter always have a tendency to mar or score-the receptacle so that an'unattractive appearance is presented.

To this end, the interior of the mold is provided at points diametrically opposed and adjacent to its rim 5 with a pair of ear forming pockets 6, which are provided with curvilineal vertical walls 7 andhorizontal, substantially flat bottom walls 8, which define the approximate formation of the ears or projections 3. It will be noted that these pockets are in open communication with the interior of the mold, and therefore the plastic material employed in forming the receptacles 4 will be pressed into said pockets to form the, projections 3 during the process. of formingithe receptacles. In order to locate the ears 3 on a plane beneath the rim 9 of the receptacle 4;, use is made'of a pair of removable wedge plates 10, which are disposed to occupy, similarly formed recesses 11 located in the rim of the mold, and which are located in open'communication as it were with the pockets 6. Said recesses are formed. to include vvertical walls 12, which I walls 13 terminate in radiallydisposed walls 14 which arespaced' so that the recesses 11 will open into the exterior of the mold. The wedge plates are constructed'to interfit within the recesses 11, and are therefore formed to provide verticalwalls 15 corresponding to the recess wal1sj12, and also with downwardly beveled walls 16 corresponding toand adapted to interfit with the walls 13 of said recesses. A vertical wall 17 connects the beveled walls 16 and the recess walls 14, and therefore terminates short of the space'between said walls 14. Thisprovides afingefr space between the latter walls 7 to facilitate the removal of; an associated wedge plate. a

From the foregoing des'cription', it will'be seen that when a receptacle is being, formed within themold 1, the plastic material comprising the same will also be forced into the pocket 6 and will be prevented from rising to. a position flush with its rim by means of the-plates 10. The latter, in turn, will be locked withinthe recesses 11, by virtue of the fact that in formingthe receptacle the thrust upon said plates is in a horizontal and radial direction. This action causes the walls 160 f the plates tobe held in, close contact with the beveled walls 13 of the recesses, thus preventing undue vertical movement on part of said plates, also on account of the outward divergence of the walls 13, outward radial movement. on part of the platesis precluded. Therefore, a structure isprovided which will firmly retain the plates 10' in proper position during the normal process of receptacle formation, and since pressure upon the plate always tends-to force the latter outwardly or upwardly, uncontrolled movement thereof is avoided.v .T o provide bail receiving openings in the ears 3' 'ofthe receptacles, the: plates 10 a are provided with one or more openings 18,.by means of. which a wiremay be insertedtherethrough "soas to'lpenetrate the ears 3, thus permitting a bai or handle 19 to-be readily-associated therewith after the receptacle has been dried.

It will be further noted that when the plates 10 are locked within the recesses111,. their rear curved faces 29 will exactlycoincide or register with the curvature of the wall form-' ing'theinterior of the mold. This eliminates the presence of objectionable marks upon the completed receptacle. After, the recep., tacle 4 has been completely formed, the same is permitted to dry for a short time within themold, and this oausesa slight reduction in the general proportions of the receptacle, so that its rim will be slightly spaced from the walls 20 of the plates. This enables the plates to be moved inwardly to such extent that itswalls 16 will clear. the coeperating walls 13 of the recesses 11, so that the plates may be removed fromsai'd recesses by lifting the same vertically therefrom. When the lates are thus'remo'ved, the pockets; '6' are in open communication with the mold rim, so that the receptacle with its associated ea'r pro ections maybe removed from-said mold without the slightest hindrance. It will be thus manifest that a mold is provided wherein provision is made fo forming; the ears 3 on a plane beneath that of the, receptacle rim, one wherein the necessity of slicing' or paring the ears is eliminated, and one wherein facility is to be had in effecting'the removal of a; completed receptacle fromthe mold. Another importantfe'atureiofthein vention resides in the beveled'walls 13 and 16 of the recesses and plates respecti'x'fely, whlch serve tolock the plates in wedged relation with the moldbody durin the normal process of forming the receptacle 4. What is claimed is:

1 1.111 a mold for producingjcelariiic' vesv sels, comprising a su'bs'tantially'bowl' shaped body having pockets formed therein and in open communication with the interior of; said body to ermit of theformation of off setprojections upon the sides of vessels formedin said mold, and to locate such pro jections below the rims oftheir vessels,and1' removable means carriedby said mold and formingthetopsof said pockets. i

' 2. In a mold for forming handle ears upon ceramic vessels, comprisin an open top receptacle having a pocket O 'Q f the interior face thereof at aposition'contiguous' to and below the rimof the mold, said 'rnnhaving a recess formed therei n in communication with said pocket, and a separable pocket inclosingl element shaped to occupy said recesses and capable-of being removed therefrom to permit of the removal of a vessel from the mold.

v 3. In EL IIlOld QfOI' forming handlereceivingf Q projections upon ceramic vessels,'comprising. a bowl shaped. receptaclehaving pockets formed on the insidethereof and opening. laterally into-the hollow. interior of the mold, said pockets being-spaced from the rim of sald mold, and removable means 'situ copies of thllpatent may be obtained for ated between the u per edges of said pocket and the rim of sai mold and serving to define the upper surfaces of projections formed in said pockets.

4. In a mold of the class described com- ,prising a hollow bowl shaped body, the interior of said body being provided adjacent to its rim with a pair of ear forming pockets, the rim of said mold adjacent to said pockets being formed with wedge shaped recesses, and a plurality of wedge members operable to interfit within said recesses and serving to space said pockets from the rim of said mold.

5. In a mold of the class described, the combination with the inner wall thereof,

said wall being provided adjacent to the rim of the mold with a pair of diametrically opposed pockets, said rim being provided ad- ]acent to said pockets with a pair of wedge shaped recesses, the diverging walls of said recesses being beveled, of means for inclosing said pockets comprising a pair of wedge shaped plate members, disposed to occupy said recesses and serving to space said pockets from said rim, and beveled walls carried by said members, and interfitting with said recess walls.

In testimony whereof I aflix my signature.

FREDERICK S. LOWRY, By MILDRED LOWRY HART,

Administratrim.

flvc cent: each, by addressing the "commissioner of Patents, Washingtcp} D. 0." 

